What I did before this error:
I was trying to install mysql for registration in OpenMRS database and it was succesfully, but i forgot my password. And removed mysql packages, i was getting some errors while this process. Then I tried to install packages and got errors, e.g. "missing dependies", "broken package". I tried to search Google, but nothing helped. So, I can't to remove 'em.
I can't purge mysql packages, because when I run:
sudo apt-get remove --purge mysql-server mysql-client mysql-common
I get weird confirmation-output(screen below), it wants to remove plasma-packages, korganizer, etc. So, I can't reinstall MySQL (i forgot password). I'm afraid to confirm this operation, why do it need this packages to delete?
My Screen: http://i.stack.imgur.com/FP7Hj.png